Laying-frame for plate-glass.



W. .l. GOLIGHTLY.

LAYING FRAME FOR PLATE GLASS.

APPLICATION FILED OCT. 5. 1911.

1, 146,563 Patented July 13, 1915.

3 SHEETS-SHEET 1.

I WITNESSES l INVENTOR W. J. GOLIGHTLY.

LAYING FRAME FOR PLATE GLASS.

APPLICATION FILED OCT. 5, I911.

Patented July 13, 1915.

3 SHEETSSHEE*T 2.

INVENTOR W. .l. GOLIGHTLY.

LAYING FRAME FOR PLATE GLASS.

- APPLICATION FILED OCT-5| 1911. 1,146,563 Patented Ju1y'13, 1915.

3 SHEETS-SHEET 3.

WITNESSES v a mfg/30R WILLIAM J' OS. GOLIGHTLY, OF KOKOMO, INDIANA, ASSIGNOR T0 PITTSBURGH PLATE GLASS COMPANY, OF 1I'IYLSIBIIRIGrH, PENNSYLVANIA, A CORPORATION OF PENN- SYLVAN IA.

LAYING-FRAME FOR PLATE-GLASS.

Application fil ed. October 5, 1911.

I To all whom it may concern:

Be it known that I, WILLIAM J. Go- LIGHTLY, a citizen of the United States, residing at Kokomo, in the county of Howard and State of Indiana, have invented certaln new and useful Improvements in Laying- Frames for Plate-Glass, of which the following is a specification.

The invention relates to laying frames for use in shifting sheets of plate glass elthe'r from a vertical to a horizontal or from a horizontal to a vertical position. The 1nvention has for its objects; the provision of a laying frame which can be rapidly operated with entire safety; and the provision of a compact and efficient operating means in which no counterweights are necessary, and in which the frame can never escape from the control of the operator. Certain embodiments of the invention are illustrated in the accompanying drawings, wherein Figure 1 is partial vertical section on the line I--I of Fig. 4; Figs. 2 and 3 are end and side elevations respectively of the magnetic clutch employed; Fig. 4 is a front elevation of the frame in raised position; Fig. 5 is a horizontal section through the device on the line V-V of Fig. 4; and Fig. 6 is an end elevation of a modified type of construction.

Briefly stated, the apparatus comprises what may be termed a shifting frame, which shifting frame is adapted to receive and carry the sheet of glass from one position to another, a supporting base upon which the shifting frame is pivotally mounted for movement from a vertical to a horizontal position, and power means having a gear connection to the shifting frame whereby such frame may be moved from one position to another.

The shifting frame, which may be of any approved form, is shown most clearly in Figs. 1 and 4, and comprises a rigid framework composed of the bars 1, 2, 3, 4, 5, 6, 7 and 8, the bars 78 being provided with the usual antifriction rollers 9. This shifting frame is pivotally mounted upon base members 10, and 11 by means of the shaft 12 rigidly secured to the shifting frame and rotatable in bearings 12 upon the base members (Fig. 1). Secured to the rear face of the shifting frame adjacent the base members 10 and 11, are the segmental gears 13 and 14. These gears mesh with pinions 15 Specification of Letters Patent.

Patented July 13, 1915.

Serial No. 653,039.

and 16 carried by the shaft 17 whose ends are journaled in the base members 10 and 11. The shaft 17 is driven from the electric motor 18 by means of a train of gearing best shown in Fig. 1. As here shown, the motor shaft is provided with a'pinion l9 meshing with a spur gear 20 upon a countershaft 21, such counter-shaft being provided with a worm 22 engaging a worm wheel 23 carried by the shaft 17. This form of gearing is especially adapted to use in connection with a laying frame inasmuch as the worm and worm wheel constitute a locking means for maintaining the shifting frame in position in case of an accident to the motor, or a failure of current. This is important as a sudden fall of the shifting frame would cause the glass plate carried thereby to break, and might result in serious injury to the operators. This arrangement also obviates the requirement for a counterweight, which has heretofore been considered necessary.

In order to cut off the current to the motor in case the frame should be allowed to over run its normal vertical or horizontal positions, the switches 24 and 25 governed by the rods 26 and 27 are provided. The rods 26 and 27 are arranged to contact with the stop members 28 and 29 when the shifting frame reaches its extreme horizontal and vertical positions respectively, the stop members being carried by such frame.

In order to more quickly stop the movement of the apparatus after the current is cut off, the magnetic brake 30 (Fig. 1) is applied to the motor shaft, such magnetic brake being shown in detail in Figs. 2 and 3. A braking disk 31 is applied to the motor shaft, and the braking arms 32, 33 pivoted at 34 cooperate with such braking disk when the current to the motor is shut off. This result is accomplished by the use of a strong spiral spring 35, which normally pulls the arms 32 and 33 toward each other and into engagement with the disk 31. The solenoid 36 has its winding in the motor circuit, and receives the two solenoid rods carried by the lower ends of the arms 32 and 33, so that when current is flowing through the motor and solenoids, the braking arms 32 and 33 are held out of contact with the disk 31. When the circuit is broken either from the controller or from the automatic switches 24 and 25, the solenoid is thrown out of operation and the spring carries the arms into engagement with the braking disk. The use of the magnetic brake permits the shifting frame to be moved at a comparatively high rate of speed with safety, inasmuch as a quick yielding stop is insured as soon as the current is out off.

A modified form of construction is illustrated in Fig. 6, wherein the shifting frame 38 is provided with a segmental gear 39 lying at the end of the frame and of such length that the frame may be shifted to horizontal position in either direction from its vertical position, thus permitting both sides of the frame to be used to support a sheet of glass. The segmental gears must be placed at the ends of the frame in order not to interfere with the glass, and the motor 40 is preferably located at the end of the frame and below the level thereof in order to be out of the way of the shifting parts. The segmental gear 39 meshes with a pinion 41 carried by a shaft 42, which shaft also carries the worm wheel 43 engaging the worm 44, carried by the motor shaft. The construction of the shifting frame and the stop mechanism corresponds in detail to that of the form of construction illustrated in F1 s. 1 to 5.

aving thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent is the following 1. A laying frame for plate glass comprising in combination a base, a shaft rotatably mounted in the base, a plurality of glass supporting members mounted on the shaft to turn therewith and having their front faces lying in the same plane and adapted to support a sheet of glass, a gear located adjacent each end of the shaft, a counter shaft provided with gears meshing with the first mentioned gears, worm gearing for driving the counter shaft, and a motor for driving the worm gearing, the said gears, counter shaft and motor lying to the rear of the said glass supporting members and mounted upon the said base.

2. In combination, a base, a framework extending upwardly from the front side of the base, a glass carrying frame pivoted upon the said framework intermediate the upper and lower edges of said frame, and gearing and a motor for swinging the frame mounted on the said base to the rear of said framework.

3. In combination, a base, a framework extending upwardly from the front side of the base, a glass carrying frame pivoted upon the said framework intermediate the upper and lower edges of said frame, and gearing and a motor for swinging the frame mounted on the said base to the rear of said framework, the said gearing and motor lying beneath the said frame when it is swung to horizontal position.

In testimony whereof I have hereunto signed my name in the presence ofthe two subscribed witnesses.

WILLIAM J OS. GOLIGHTLY.

Witnesses:

F. W. JACKSON, ROBT. E. MURPHY. 

